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Finding the Fourth Proportional to 1,869,843.24, 2,803,766.88 and 970,379.28

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Solution

The fourth proportional to 1,869,843.24, 2,803,766.88 and 970,379.28 is: 1,455,051.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,843.24 : 2,803,766.88 = 970,379.28 : x
  2. Step 2: Convert to fraction form
    1,869,843.24/2,803,766.88 = 970,379.28/x
  3. Step 3: Cross multiply
    1,869,843.24x = 2,803,766.88 × 970,379.28
  4. Step 4: Simplify right side
    1,869,843.24x = 2,720,717,286,302.25
  5. Step 5: Solve for x
    x = 2,720,717,286,302.25/1,869,843.24
  6. Step 6: Final answer
    x = 1,455,051.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.